I didn't have to worry about my period at all. Just cleaned it in the morning and maybe at night and I was good through it all (including swimming and 12 hour car trips). I told the 3 girls I was on vacation with about it and while I don't think any of them will be buying one any time soon, at least they know about it. Plus it took me a lil while for the idea to sink in when i first heard about it.
I was a bit bummed about having to spend $30 on new cup when the one I have is perfectly fine, but I sort of look at it as a bonus since i now have two cups and don't have to worry if something happens to one.
Oh I also experienced my first 12 plus hours with the cup in stank! But it wasn't that bad and it went away fairly quickly. I was confused before when I had heard about it, thinking "why the hell would you smell your cup?" But now i see it's sort of impossible not to when that happens hehe.
Just wanted to share my fab vaca with the Diva with you all.